IndividualActive
William Schafernak, DC
NPI 1639369267 · Chiropractor · Mundelein, IL
William Schafernak, DC is a Chiropractor provider in Mundelein, IL (NPI 1639369267).
Provider details
- NPI number
- 1639369267
- Entity type
- Individual
- Primary specialty
- ChiropractorChiropractic Providers
- Credential
- DC
- Sex
- Male
- Sole proprietor
- Yes
Specialties & taxonomies
Chiropractic Providers
Profile Score
Detailed profile(82/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
18 yrs in NPPES registry
- Profile completeness38% of score
83% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
450 N Seymour Ave
Mundelein, IL 60060-1835
Phone: (847) 949-4262
Street-level locationGet directions
Mailing address
450 N Seymour Ave
Mundelein, IL 60060-1835
Registry dates
- Enumerated
- 2007-07-30
- Last updated
- 2007-07-30
Frequently asked questions
- What is William Schafernak's NPI number?
- William Schafernak's National Provider Identifier (NPI) is 1639369267, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Schafernak's specialty?
- William Schafernak is listed in the NPPES registry with a primary specialty of Chiropractor (Chiropractic Providers).
- Where is William Schafernak located?
- William Schafernak's practice location on file with NPPES is 450 N Seymour Ave, Mundelein, IL 60060-1835.
- What is William Schafernak's phone number?
- The practice phone number listed in the NPPES registry for William Schafernak is (847) 949-4262.
- Is William Schafernak's NPI active?
- Yes — William Schafernak's NPI (1639369267) is active in the NPPES registry as of the last update on 2007-07-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.